diff --git a/flake.lock b/flake.lock
index 6438836..6b24660 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,5 +1,82 @@
 {
   "nodes": {
+    "cachix": {
+      "inputs": {
+        "devenv": [
+          "wordle-solver",
+          "crate2nix"
+        ],
+        "flake-compat": [
+          "wordle-solver",
+          "crate2nix"
+        ],
+        "git-hooks": "git-hooks",
+        "nixpkgs": "nixpkgs_3"
+      },
+      "locked": {
+        "lastModified": 1767714506,
+        "narHash": "sha256-WaTs0t1CxhgxbIuvQ97OFhDTVUGd1HA+KzLZUZBhe0s=",
+        "owner": "cachix",
+        "repo": "cachix",
+        "rev": "894c649f0daaa38bbcfb21de64be47dfa7cd0ec9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "ref": "latest",
+        "repo": "cachix",
+        "type": "github"
+      }
+    },
+    "crate2nix": {
+      "inputs": {
+        "cachix": "cachix",
+        "devshell": "devshell",
+        "flake-compat": "flake-compat_2",
+        "flake-parts": "flake-parts_2",
+        "nix-test-runner": "nix-test-runner",
+        "nixpkgs": [
+          "wordle-solver",
+          "nixpkgs"
+        ],
+        "pre-commit-hooks": "pre-commit-hooks"
+      },
+      "locked": {
+        "lastModified": 1782759041,
+        "narHash": "sha256-2577vxyoBa8+ZRiXr3CuPtOuEtPRYsFPSZuEc/KI/80=",
+        "owner": "nix-community",
+        "repo": "crate2nix",
+        "rev": "5e1ecfd2d15b34ec90c2e51fdffbe8116595a767",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "crate2nix",
+        "type": "github"
+      }
+    },
+    "devshell": {
+      "inputs": {
+        "nixpkgs": [
+          "wordle-solver",
+          "crate2nix",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1768818222,
+        "narHash": "sha256-460jc0+CZfyaO8+w8JNtlClB2n4ui1RbHfPTLkpwhU8=",
+        "owner": "numtide",
+        "repo": "devshell",
+        "rev": "255a2b1725a20d060f566e4755dbf571bbbb5f76",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "devshell",
+        "type": "github"
+      }
+    },
     "disko": {
       "inputs": {
         "nixpkgs": [
@@ -78,6 +155,20 @@
         "type": "github"
       }
     },
+    "flake-compat_2": {
+      "locked": {
+        "lastModified": 1733328505,
+        "narHash": "sha256-NeCCThCEP3eCl2l/+27kNNK7QrwZB1IJCrXfrbv5oqU=",
+        "rev": "ff81ac966bb2cae68946d5ed5fc4994f96d0ffec",
+        "revCount": 69,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/edolstra/flake-compat/1.1.0/01948eb7-9cba-704f-bbf3-3fa956735b52/source.tar.gz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://flakehub.com/f/edolstra/flake-compat/1.tar.gz"
+      }
+    },
     "flake-parts": {
       "inputs": {
         "nixpkgs-lib": "nixpkgs-lib"
@@ -96,6 +187,123 @@
         "type": "github"
       }
     },
+    "flake-parts_2": {
+      "inputs": {
+        "nixpkgs-lib": [
+          "wordle-solver",
+          "crate2nix",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1768135262,
+        "narHash": "sha256-PVvu7OqHBGWN16zSi6tEmPwwHQ4rLPU9Plvs8/1TUBY=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "80daad04eddbbf5a4d883996a73f3f542fa437ac",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "flake-parts_3": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib_2"
+      },
+      "locked": {
+        "lastModified": 1785627969,
+        "narHash": "sha256-4dtXQk/NMePegK/nWp5NSeuZKLATItOq61lpEvmXqGw=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "427bf4bd9435fdf21321c8cc628c24efc14c0f7a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "git-hooks": {
+      "inputs": {
+        "flake-compat": [
+          "wordle-solver",
+          "crate2nix",
+          "cachix",
+          "flake-compat"
+        ],
+        "gitignore": "gitignore",
+        "nixpkgs": [
+          "wordle-solver",
+          "crate2nix",
+          "cachix",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1765404074,
+        "narHash": "sha256-+ZDU2d+vzWkEJiqprvV5PR26DVFN2vgddwG5SnPZcUM=",
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "rev": "2d6f58930fbcd82f6f9fd59fb6d13e37684ca529",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "type": "github"
+      }
+    },
+    "gitignore": {
+      "inputs": {
+        "nixpkgs": [
+          "wordle-solver",
+          "crate2nix",
+          "cachix",
+          "git-hooks",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1709087332,
+        "narHash": "sha256-HG2cCnktfHsKV0s4XW83gU3F57gaTljL9KNSuG6bnQs=",
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "637db329424fd7e46cf4185293b9cc8c88c95394",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
+    "gitignore_2": {
+      "inputs": {
+        "nixpkgs": [
+          "wordle-solver",
+          "crate2nix",
+          "pre-commit-hooks",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1709087332,
+        "narHash": "sha256-HG2cCnktfHsKV0s4XW83gU3F57gaTljL9KNSuG6bnQs=",
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "637db329424fd7e46cf4185293b9cc8c88c95394",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
     "home-manager": {
       "inputs": {
         "nixpkgs": [
@@ -154,6 +362,22 @@
         "type": "github"
       }
     },
+    "nix-test-runner": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1588761593,
+        "narHash": "sha256-FKJykltAN/g3eIceJl4SfDnnyuH2jHImhMrXS2KvGIs=",
+        "owner": "stoeffel",
+        "repo": "nix-test-runner",
+        "rev": "c45d45b11ecef3eb9d834c3b6304c05c49b06ca2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "stoeffel",
+        "repo": "nix-test-runner",
+        "type": "github"
+      }
+    },
     "nixos-hardware": {
       "inputs": {
         "nixpkgs": "nixpkgs"
@@ -201,6 +425,21 @@
         "type": "github"
       }
     },
+    "nixpkgs-lib_2": {
+      "locked": {
+        "lastModified": 1785031560,
+        "narHash": "sha256-OmshNvn2vupOFpYinLUu+1Dnpu4n7Q5N3ggGVNHpkUI=",
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "rev": "0e79af5e3d4dcfcd676ab5ba3f95d2e3352e078c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "type": "github"
+      }
+    },
     "nixpkgs-unstable": {
       "locked": {
         "lastModified": 1786247143,
@@ -233,6 +472,50 @@
         "type": "github"
       }
     },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1765186076,
+        "narHash": "sha256-hM20uyap1a0M9d344I692r+ik4gTMyj60cQWO+hAYP8=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "addf7cf5f383a3101ecfba091b98d0a1263dc9b8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "pre-commit-hooks": {
+      "inputs": {
+        "flake-compat": [
+          "wordle-solver",
+          "crate2nix",
+          "flake-compat"
+        ],
+        "gitignore": "gitignore_2",
+        "nixpkgs": [
+          "wordle-solver",
+          "crate2nix",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1769069492,
+        "narHash": "sha256-Efs3VUPelRduf3PpfPP2ovEB4CXT7vHf8W+xc49RL/U=",
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "rev": "a1ef738813b15cf8ec759bdff5761b027e3e1d23",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "disko": "disko",
@@ -246,7 +529,29 @@
         "nixpkgs": "nixpkgs_2",
         "nixpkgs-unstable": "nixpkgs-unstable",
         "sops-nix": "sops-nix",
-        "spicetify-nix": "spicetify-nix"
+        "spicetify-nix": "spicetify-nix",
+        "wordle-solver": "wordle-solver"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "nixpkgs": [
+          "wordle-solver",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1787022047,
+        "narHash": "sha256-wNlYM/obKOkkRELrOfto1JT5CRANR6hB/RjOELp223U=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "b32685dd7c5a965aa8273adb7ddaf7f5b40d0faa",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
       }
     },
     "sops-nix": {
@@ -319,6 +624,29 @@
         "repo": "default",
         "type": "github"
       }
+    },
+    "wordle-solver": {
+      "inputs": {
+        "crate2nix": "crate2nix",
+        "flake-parts": "flake-parts_3",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "rust-overlay": "rust-overlay"
+      },
+      "locked": {
+        "lastModified": 1787221463,
+        "narHash": "sha256-G/BsqI9hMjr/x9h7mTNS5OoBuBno8G6oF4OdrEarNgA=",
+        "ref": "refs/heads/main",
+        "rev": "90ccd230e46cbe620ac3da25b95df17c0d32c248",
+        "revCount": 14,
+        "type": "git",
+        "url": "https://git.jroeger.de/jonas/wordle-solver-rs"
+      },
+      "original": {
+        "type": "git",
+        "url": "https://git.jroeger.de/jonas/wordle-solver-rs"
+      }
     }
   },
   "root": "root",
diff --git a/flake.nix b/flake.nix
index d28c6b3..a02fc49 100644
--- a/flake.nix
+++ b/flake.nix
@@ -29,6 +29,8 @@
     nix-minecraft.inputs.nixpkgs.follows = "nixpkgs";
     spicetify-nix.url = "github:Gerg-L/spicetify-nix";
     spicetify-nix.inputs.nixpkgs.follows = "nixpkgs";
+    wordle-solver.url = "git+https://git.jroeger.de/jonas/wordle-solver-rs";
+    wordle-solver.inputs.nixpkgs.follows = "nixpkgs";
   };
 
   outputs = inputs @ {
diff --git a/hosts/harbor/configuration.nix b/hosts/harbor/configuration.nix
index f54a167..c0d758f 100644
--- a/hosts/harbor/configuration.nix
+++ b/hosts/harbor/configuration.nix
@@ -107,6 +107,8 @@
   hive.wallabag.enable = true;
   hive.wallabag.localPort = 39184;
   hive.wallabag.instanceFQDN = "wallabag.jroeger.de";
+  hive.wordle-solver.enable = true;
+  hive.wordle-solver.instanceFQDN = "wordle-solver.jroeger.de";
 
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
diff --git a/hosts/harbor/default.nix b/hosts/harbor/default.nix
index 2902d62..bdf69d3 100644
--- a/hosts/harbor/default.nix
+++ b/hosts/harbor/default.nix
@@ -24,6 +24,7 @@
       self.nixosModules.calibre
       self.nixosModules.korrosync-hive
       self.nixosModules.wallabag
+      self.nixosModules.wordle-solver
     ];
   };
 }
diff --git a/modules/services/wordle-solver.nix b/modules/services/wordle-solver.nix
new file mode 100644
index 0000000..e5a1012
--- /dev/null
+++ b/modules/services/wordle-solver.nix
@@ -0,0 +1,36 @@
+{inputs, ...}: {
+  flake.nixosModules.wordle-solver = {
+    config,
+    lib,
+    pkgs,
+    ...
+  }: let
+    cfg = config.hive.wordle-solver;
+  in {
+    options.hive.wordle-solver = {
+      enable = lib.mkEnableOption "Enable wordle-solver site";
+      instanceFQDN = lib.mkOption {
+        type = lib.types.singleLineStr;
+        example = "wordle-solver.example.com";
+        description = "Fully qualified domain name of the wordle-solver host";
+      };
+    };
+
+    config = lib.mkIf cfg.enable {
+      # Fallback server with only 403
+      services.nginx.virtualHosts.${config.networking.domain} = lib.mkDefault {
+        default = true;
+        locations."/".return = 403;
+        forceSSL = true;
+        enableACME = true;
+      };
+
+      # Virtual host for wordle-solver
+      services.nginx.virtualHosts."${cfg.instanceFQDN}" = {
+        forceSSL = true;
+        enableACME = true;
+        root = "${inputs.wordle-solver.packages.${pkgs.system}.wordle-solver-web}/";
+      };
+    };
+  };
+}